Cubase 13 pro "Heap Corruption"

when trying to load a project it crashes when loading. I have to end it with task manager and when it crashes I get a message saying “syntax error”. this is the last dmp file(cant send the actual file because It’s too big apparently). If this file is corrupted then how do I save it? Is it even possible or am I gonna have to start everything over from scratch again?

one of the other crash files

Cubase 13.0.55 64bit2025.11.2 16.48.37.367.dmp (2.9 MB)

I can’t vouch for the correctness, but copilot describes Heap Corruption this way.

Heap corruption in a Windows crash dump typically indicates that memory management structures have been damaged, often due to a faulty driver or software bug.

Here’s a breakdown of what this means and how to interpret it:

:brain: What Is Heap Corruption?

  • The heap is a region of memory used for dynamic allocation—where programs request memory during runtime.

  • Heap corruption occurs when a program or driver writes outside the bounds of allocated memory or modifies internal heap structures improperly.

  • In Windows, this can trigger a Blue Screen of Death (BSOD) with a bug check like KERNEL_MODE_HEAP_CORRUPTION (code 0x13A).

:magnifying_glass_tilted_left: What Causes It?

  • Faulty drivers: Most commonly graphics drivers or third-party device drivers that mishandle memory.

  • Corrupt system files: Damaged Windows components can interfere with memory management.

  • Hardware issues: Failing RAM or incompatible components (e.g., mismatched PCI-E slots for GPUs) can corrupt memory.

  • Software bugs: Applications with poor memory handling can corrupt the heap, especially under high load (e.g., gaming, rendering, mining).

:hammer_and_wrench: How to Diagnose and Fix It

  • Check Event Viewer: Look for system errors around the time of the crash.

  • Run Driver Verifier: Use verifier.exe to identify problematic drivers.

  • Update or roll back drivers: Especially graphics and chipset drivers.

  • Run system file checks:

    • sfc /scannow to fix corrupted system files.

    • DISM /Online /Cleanup-Image /RestoreHealth for deeper repair.

  • Test your RAM: Use Windows Memory Diagnostic or MemTest86.

  • Check hardware installation: Ensure GPU and other components are seated properly and compatible with your motherboard.

If you’re analyzing a crash dump (.dmp file), tools like WinDbg can help pinpoint the offending module or driver. Want help interpreting a specific dump? You can upload it and I’ll walk you through it.

I’ll try these out and look online some more, thank you. I feel like it is just this one project file that’s corrupted which is why I asked if anyone would know how to not lose all my work and have a new healthy file instead. So far, all my other cubase project files are fine and work properly which is reassuring.

Oh, in that case try creating a brand new Project and use Import Tracks From Project… to pull the Tracks from the corrupted Project into it.

do that project uses all your ram available? if this is the case, try increasing the page file in windows to a high number, after the 25h2 update the page file was set automatically to 20 gb top and it behaves dynamically, this can cause several errors in big projects that uses a lot of ram (available in the system), increasing the page file in all the disks solves this (at least it solved it for me with a big project that used more than my max 64gb of ram)

1 Like

Trying that right now, was working up until it did the crashing again and is now unstable as well. I even turned auto save off incase that was causing issues. This is a new dmp file, not sure what the problem even is.

Cubase 13.0.55 64bit2025.11.2 17.36.58.627.dmp (2.6 MB)

how do I do that?

This has the whiff of misbehaving plug-in. Try starting Cubase in Safe Mode and disable the plug-ins. If that works it probably is one of the plugs.

i Share a youtube video that explains it better than me, i hope this helps!

How to Change Page File Size Correctly on Windows 11 Guide

Looking at the second dump, it appears that the problem is originating in Kontakt 7. I suggest disabling that for testing (completely remove the track and the plugin), and see if you still crash.

In the first one, I can’t see if Kontakt is involved.

Not that it helps you, but in both cases, it’s an error building a string using vsprintf and similar. In your first one, it was a call to change a short path name to a relative path name. Anything funky going on with your paths?

(Please also note that the version of Windows 10 you are running (20h1 : 19041), if not LTSC, went out of support in 2021.)

Pete
Microsoft

1 Like

I think the minimum supported Win 10 version was 22H1 for Cubase 13?

1 Like

Talking about supported versions of Windows. Unrelated to Cubase support.

Pete
Microsoft

Yes I know. But, based on your observation, the OP appears to be running on a version of Windows 10 which is not supported by Cubase 13, so it might be wise to update Win 10 to the latest version at least.

1 Like

Good point. I misread what you wrote.

Pete
Microsoft

1 Like

I tried making a new orchestral template from scratch and all was going well until I added some Kontakt 8 player instrument tracks. The second I started setting up the instruments with the Century Brass library it gave me another crash and told me the same thing as last time. This was the dmp file from just now. This is all so confusing to me, I don’t really even know what you mean by my paths.

Cubase 13.0.55 64bit2025.11.3 14.07.11.218.dmp (3.7 MB)

this is the error message when cubase hub opened again:

if you read what Pete and I were talking about just above your post, you’ll see that you are running Cubase 13 on an unsupported (by both Microsoft and Steinberg) version of Windows 10. Under those circumstances your system behaviour will be unpredictable.
I suggest you upgrade Windows 10 to the most current version and see if the problem still presents.

Actually I had a look at the dump and it appears you’re using Win 10 22H2. Can you confirm?

Yes
Edition Windows 10 Pro
Version 22H2

Thanks.
The failures are different in both dumps, but both involve ucrtbase.dll.
Just to eliminate a few possibilities, can you open an admin-level command prompt and run the command sfc /scannow. It will churn away for a while and, when it completes, tell you if it found any corrupt Windows files and if it attempted to replace them.
It’s also worth re-installing the Microsoft Visual C++ Redistributable.

OS version in the dump files has been OS_VERSION: 10.0.19041.1. That’s 20H1.

I’m confused by seeing two different OS versions in this dump file. The header information says 19045, but analyze -v shows 19041, as does WER.OS.Version.

Windows 10 Version 19045 MP (32 procs) Free x64
Product: WinNt, suite: SingleUserTS
Edition build lab: 19041.1.amd64fre.vb_release.191206-1406
Debug session time: Mon Nov  3 14:07:11.000 2025 (UTC - 5:00)
System Uptime: 0 days 18:52:01.080
Process Uptime: 0 days 0:31:02.000

Usually those numbers are all the same. So maybe there are some weird things going on with the OS install here? Is it a vanilla Windows install?

Anyway, same source for the error as last time. Except now it says Kontakt 8

STACK_TEXT:  
00000000`00000000 00000000`00000000 Cubase13.exe!heap_corruption+0x0
00000000`00000000 00000000`00000000 unknown![~0s]+0x0
00000000`00108350 00007ffc`2c61bda0 ntdll!RtlpLowFragHeapAllocFromContext+0x0
00000000`00108410 00007ffc`2c61b3c7 ntdll!RtlpAllocateHeapInternal+0x0
00000000`00108520 00007ffc`2c611bf2 ntdll!RtlpReAllocateHeap+0x0
00000000`001086a0 00007ffc`2c6138e3 ntdll!RtlpReAllocateHeapInternal+0x0
00000000`00108800 00007ffc`2c6136bd ntdll!RtlReAllocateHeap+0x0
00000000`00108840 00007ffc`2a371699 ucrtbase!_realloc_base+0x0
00000000`00108870 00000001`4373eaa6 Cubase13+0x0
00000000`00108878 00000000`00000008 unknown!unknown+0x0
00000000`00108880 00000000`3920656d unknown!printable+0x0
00000000`00108888 00000000`00000001 unknown!unknown+0x0
00000000`00108890 00007ffb`6be8ef91 Kontakt_8+0x0

Exception:

EXCEPTION_RECORD:  (.exr -1)
ExceptionAddress: 00007ffc2c61bda0 (ntdll!RtlpLowFragHeapAllocFromContext+0x0000000000000750)
   ExceptionCode: c0000005 (Access violation)
  ExceptionFlags: 00000000
NumberParameters: 2
   Parameter[0]: 0000000000000000
   Parameter[1]: ffffffffffffffff
Attempt to read from address ffffffffffffffff

I recommend talking with NI about this. But again, the mismatched versions has me scratching my head a little here.

Pete
Microsoft